Champion of El; man of God, a descendant of Cain (Gen. 4:18), so called, perhaps, to denote that even among the descendants of Cain God had not left himself without a witness.
Easton’s Bible Dictionary
Methusael
Name meaningwho demands his death
Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.